The bond energy is the energy required to
dissociate one mole of the substance
dissociate bond in 1 kg of the substance
break one mole of similar bonds
break bonds in one mole of substance
For an ideal gas, the heat of reaction at constant pressure and constant volume are related as
H + E = pV
None of the above
Hess's law is based on
law of conservation of mass
law of conservation of energy
first law of thermodynamics
None of the above
The pH of a 10-8 molar solution of HCl in water is
8
between 7 and 8
between 6 and 7
None of these
The solubility of AgCl is 1 x 10-5 mol/L. Its solubility in 0.1 molar sodium chloride solution is
When ammonium chloride is added to ammonia solution, the pH of the resulting solution will be
increased
seven
decreased
unchanged